Centrifugal cream-separator



(No Model.)

0. HOHNSBEHN.

GENTRIFUGAL CREAM SEPARATOR. No. 590,574. I Patented Sept. 28,1897.

m: uonms vzrzls co. Pnc'nurmo. WASHINGYON, n. c.

UNITED STATES PATENT OFFICE.

()LAUS IIOHNSBEIIN, O1 \VAVERLY, IOlVA.

CENTRIFUGAL CREAM-SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 590,574, datedSeptember 28, 1897.

Application filed December 17, 1896. Serial No. 616,005. (No model.)

To aZZ whom it may concern:

Be it known that I, CLAUS HOHNSBEHN, a citizen of the United States,residing at \Vaverly, in the county of Bremer and State of Iowa, haveinvented a new and useful Centrifugal Cream-Separator, of which thefollowing is a specification.

The object of this invention is to provide certain improvements incentrifugal creamseparators, whereby the process of separation is mademore thor0ughthat is, a greaterproportion of cream is taken from a givenquantity of milk and also the capacity of a given size of separator-bowlincreased.

Hy object is, further, to provide a separator in which the parts are allof simple, cheap, and durable construction, and which may be readilytaken apart and thoroughly and easily cleaned.

My invention consists in the construction, arrangement, and combinationof parts on the interior of the bowl, as hereinafter set forth, pointedout in my claims, and illustrated in the accompanying drawings, in whichFigure 1 shows a vertical central sectional view of the top of thesupporting-frame and the separating-bowl and accompanying parts. Fig. 2shows a side elevation of the bellshaped partition and the wingsattached thereto.

Referring to the accompanying drawings, the reference-letter A is usedto indicate the bowl-shaped top of the supporting-frame.

A indicates a detachable sheet-metal cover placed on the top edge of thepart A and having an inclined bottom to direct milk to discharge throughthe pipe A A indicates a second cover also having an inclined bottom todirect cream through the pipe A B indicates the separator-bowl, havingits central portion designed to receive a shaft and also having a coverB screwed thereto, and a cap B screwed to the top of the cover. Anopening 13* in the upper end of the cover provides an outlet for thecream.

B indicates pipes secured to the under side of the cover and leadingfrom the outer edge thereof inwardly andupwardly to discharge milk intothe cover-section A All of the parts thus far described are of theconstruction usual to separators and the parts perform their usualfunctions. Hence further description thereof is deemed unnecessary.

The novelty of constructionin my invention consists in providing anopening C in the central part of the bowl B to extend from the top ofthe bowls stem to a point near the top of the interior of the bowl. Anumber of short pipe-sections 0 lead from said open ing outwardly in ahorizontal plane, and a shoulder G is formed on the exterior of the saidstem above said pipe-sections.

D indicates a bell-shaped sheet-metal partition having its top Dinclined inwardly at a sharp angle and on its lower edge a series ofshort legs D D indicates a series of radial blades fixed to thebell-shaped partition and shaped to conform to the interior of theseparator-bowl.

D indicates a short tube-section designed to encircle the top of thecentral stem of the separator-bowl and to rest on the shoulder C and beengaged at the upper end by the cover D It is thus held firmly inposition against vertical movements. The blades D are fixed to thistube-section and are thereby secured in position in the bowl.

It is obvious from the construction just described that the partcomprising the bellshaped partition D, the'blades D and the tube D maybe readily detached for purposes of cleaning, and that when detached thebowl is also easily cleaned.

In practical operation the milk is admitted in the usual way and passesinto the bowl through the pipes 0 where the action of centrifugal forcewill cause it to strike the bellshaped partition. The top D of saidpartition will prevent the milk from rising, and the incline of thepartition will cause the milk to descend in the bowl. Theprocess ofseparation is of course carried on during the descent of the milk to thebottom of the bowl, as indicated by the arrows in Fig. 1, the cream ofcourse going to the center and rising. The milk then passes under thepartition and the process of separation continues during the time ittakes for the same to pass to the top of the bowl, where the skim-milk.

that the amount of milk that may be passed through the separator in agiven time is regu- 'lated by the size of the discharge-opening.

Heretofore it has been necessary to make these openings quite small, sothat the milk would remain in the separator a long time in order thatthe process of separation might be completed. It has been found thatwith the use of the bell-shaped partition the dischargeopenings may bemade larger and the capacity of the separator increased, otherconditions remaining the same.

Having thus described my invention, what I claim as new therein, anddesire to secure by Letters Patent of the United States, is 1. In acentrifugal cream-separator, the combination of a separating-bowl, atube formed on or fixed to the central bottom portion to projectupwardly therefrom and to admit milk to the interior of the bowl, abellshaped partition open at its upper and lower ends and containedwholly within the liquidspace of the separating-bowl, asleeve detachablysecured to said tube, and means for connecting the sleeve and thebell-shaped partition so that the partition is firmly supported inposition within the separating-bowl.

2. In a centrifugal cream separator, the combination of aseparatingbowl, 'a tube formed on or fixed to the central bottom portionto project upwardly therefrom and to admit milk to the interior of thebowl, a shoulder on said tube, a sleeve designed to be placed on saidtube with its lower end resting on said shoulder, means for holding thesleeve downwardly upon said shoulder, a series of radial blades fixed tothe said sleeve to approximately fill the liquid-space of theseparatingbowl, and a bowl-shaped partition fixed to or supported bysaid radial blades, substantially in the manner set forth and for thepurposes stated.

CLAUS IIOIINSBEHN. lVitn esses:

O. BUEsINe,

F. H. BIUNGER.

